The QB78 Carbine is Back - and Better!

The CAR78a - Archer Airguns’ QB78 carbine is now available again, with dramatically increased muzzle velocity and other improvements.


So what’s new?

Well, this new QB78 carbine is only 35-inches long, that’s 1 1/2-inches shorter than the previous version and a full 4 1/2-inches shorter than the standard factory QB78. It also incorporates our new muzzle brake which has a beautiful deep blued finish and fits deeper onto the end of the barrel - hence the length reduction.


But the big news is the higher muzzle velocity. The carbine now shoots to the same specs as the full-length QB78. That’s around 600fps in .177 cal and 500fps in .22, both at 65 degrees F. Like all CO2 guns, the muzzle velocity increases with temperature and these specs mean you will see around 640fps for .177s and 540fps for .22s at 85 degrees F.

This muzzle velocity increase is achieved by using an improved breech seal to overcome the unintentional velocity restriction caused by the standard factory part. (See our YouTube video on how to make this change yourself) The shorter barrel reduces muzzle velocity, but the breech seal brings it back up again. The previous version of the carbine had a 10% lower muzzle velocity because of this reason.

And again, accuracy is - if anything - superior to the QB78 in standard factory trim. This is due to the solid steel muzzle brake, which dampens barrel vibration when shooting.

The stock is from the QB78 Deluxe - Chinese wood is getting better all the time and these stocks look good, many having some nice grain and/or figuring to the wood.

There's no iron sights on this rifle, so fit a compact optical sight such as the Leapers "Bugbuster" or red/green dot scope, such as the one we're used for the photograph. Of course, these are an additional cost item!



This new QB78 carbine is now available in both calibers at our store. Have fun and enjoy the great handling it provides.